Question
In a meter bridge experiment students observe a balance point at the point J, where AJ = I. Draw the equivalent Wheatstone bridge for this set up. The value of R and X are both doubled and then interchanged. What will be the new position of the balance point? How will the balance point get affected?
Solution
The equivalent Wheatstone bridge is shown in fig. below
To satisfy the balancing condition we get,
If R and X both are doubled, the ratio will remain same and there will be no change in position of balance point. Position of balance point gets affected if R and P or X and Q are interchanged.
To satisfy the balancing condition we get,
If R and X both are doubled, the ratio will remain same and there will be no change in position of balance point. Position of balance point gets affected if R and P or X and Q are interchanged.
